727 leak

["Chris Strohmeyer" <chrisstroh@xxxxxxxxxxx>]

Thx  Stevan and Dave,

The shaft end looks to be blocked only by a useless ear of the tailshaft. It 
appears like the designers put it there by accident which prevents me from 
sliding the shaft rearward no more that about 1/2" . I wonder if the o ring 
is within 1/2" of the end?  Is the shaft stationary or does it move on it's 
axis or forward and aft?

Thx guys,
Chris
67 Imperial Convertible
----- Original Message ----- 
From: "Stevan Miner" <miner@xxxxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Sunday, December 17, 2006 6:27 AM
Subject: Re: IML: 727 leak


> Hi Chris,
> What you have leaking is the O-ring on the end of the shaft that the 
> low-reverse servo arm pivots on. You can change this without trans removal 
> but it takes a little work. You'll have to remove the tailshaft. Remember 
> there is a snap ring under the cover that is now hidden by the rear 
> transmission mount. The pan and valve body will also have to be removed. 
> You can then take a long punch from the inside of the case and tap that 
> shaft rearward to get at the offending o-ring. I never completely remove 
> the shaft just enough to replace the O-ring. Makes it alot easier to line 
> everything back up and less chance of dislodging the reverse band strut 
> link. I always replace as the seals and gaskets that were distributed 
> during the procedure including the selector shaft seal.
> Stevan Miner
> Miner Auto Service
> Winnebago MN
> ----- Original Message ----- 
> From: "Chris Strohmeyer" <chrisstroh@xxxxxxxxxxx>
> To: <mailing-list@xxxxxxxxxxxxxxxx>
> Sent: Sunday, December 17, 2006 12:45 AM
> Subject: IML: 727 leak
>
>
>> This is going to be hard to describe but here goes. On my 67 Imperial I 
>> have a leak at  just below the vertical surface that the tailshaft bolts 
>> to. It's a small space between the lower flange of the tailshaft and the 
>> TOP of the oil pan FLANGE. To see it you have to look from the back of 
>> the transmission looking forward. It's slightly off center of the 
>> tailshaft and where it's leaking appears to look like the end of a aprox 
>> 3/4" diameter shaft. Oil is seeping from this "shaft end". I've looked at 
>> the breakaway photos of the 727 and see nothing that looks like this 
>> inside so my next step is to drain the tranny,pull the pan and see.
>>
>> Does anyone know what I'm talking about?
>>
>> Thx,
>> Chris Strohmeyer
>> ----- Original Message ----- 
>> From: "Robin Giesbrecht" <robings@xxxxxxxxxxx>
>> To: <mailing-list@xxxxxxxxxxxxxxxx>
>> Sent: Saturday, December 16, 2006 9:59 PM
>> Subject: Re: IML: power steering leak - O rings
>>
>>
>>> You can buy rebuild kits for the power steering pump that are really 
>>> only a seal kit. There is a big oring that seals the whole canister and 
>>> a few more seals for the shaft and the relief valve I think. Not that 
>>> hard to do.
>>>
>>> Robin Giesbrecht
>>> 72 Imperial
>>>
>>>
>>>>From: Kenyon Wills <imperialist1960@xxxxxxxxx>
>>>>Reply-To: mailing-list@xxxxxxxxxxxxxxxx
>>>>To: mailing-list@xxxxxxxxxxxxxxxx
>>>>Subject: Re: IML: power steering leak  - O rings
>>>>Date: Sat, 16 Dec 2006 21:26:56 -0800 (PST)
>>>>
>>>>
>>>>
>>>>--- Chris Strohmeyer <chrisstroh@xxxxxxxxxxx> wrote:
>>>>
>>>> > Kenyan said...........
>>>> >
>>>> > 4.  "Bad o-rings"?  Anyone else that works on cars
>>>> > where you live?  That sounds like bad advice to me,
>>>> > but it may be out of context and part of other info
>>>> > that he gave?
>>>> >
>>>> > Aren't there 1 or 2 large o rings on the power
>>>> > steering pump that seals the
>>>> > reservoir can?
>>>> >
>>>> > Chris
>>>>
>>>>
>>>>
>>>>True.  There are o-rings.  The way that the thing's
>>>>put together sorta precludes catastrophic fluid loss
>>>>as described in the letter posted here, but to address
>>>>the question:
>>>>
>>>>If I were going to pay a mechanic to deal with this, I
>>>>would buy a replacement pump unit that comes with a
>>>>warranty so that I didn't have to worry about it.
>>>>
>>>>Reason being that I don't agree with paying a mechanic
>>>>to only partially rebuild a pump for a labor charge
>>>>that could very likely equal or exceed the cost of a
>>>>replacement.  I would pay the rehab factory that will
>>>>give a warranty do that portion instead and get the
>>>>whole thing spec'd out by someone that does nothing
>>>>but.  That's what I'd do, anyway.
>>>>
>>>>Also, a failed O-ring seal is highly unlikely to cause
>>>>the sort of rapid fluid loss described, so that's what
>>>>I was thinking based on the info given, but I wasn't
>>>>there.
>>>>
>>>>
>>>>Please use an o in my name.  I'm particular about
>>>>that.
>>>>
>>>>
>>>>-Kenyon
>>>>
>>>>
>>>>
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>>>>
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>>
>>
>>